EP0241442A3 - Method for controlling the deflection of an adjustable-crown roll as well as a paper machine roll wherein the method is applied - Google Patents

Method for controlling the deflection of an adjustable-crown roll as well as a paper machine roll wherein the method is applied Download PDF

Info

Publication number
EP0241442A3
EP0241442A3 EP87850113A EP87850113A EP0241442A3 EP 0241442 A3 EP0241442 A3 EP 0241442A3 EP 87850113 A EP87850113 A EP 87850113A EP 87850113 A EP87850113 A EP 87850113A EP 0241442 A3 EP0241442 A3 EP 0241442A3
Authority
EP
European Patent Office
Prior art keywords
roll
adjustable
crown
counter
deflection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP87850113A
Other languages
German (de)
French (fr)
Other versions
EP0241442A2 (en
Inventor
Juhani Niskanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Oy
Original Assignee
Valmet Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Oy filed Critical Valmet Oy
Publication of EP0241442A2 publication Critical patent/EP0241442A2/en
Publication of EP0241442A3 publication Critical patent/EP0241442A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/022—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle
    • F16C13/024—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle
    • F16C13/026—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure
    • F16C13/028—Bearings supporting a hollow roll mantle rotating with respect to a yoke or axle adjustable for positioning, e.g. radial movable bearings for controlling the deflection along the length of the roll mantle by fluid pressure with a plurality of supports along the length of the roll mantle, e.g. hydraulic jacks
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/06—Means for regulating the pressure
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure
    • D21G1/0026—Arrangements for maintaining uniform nip conditions
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls
    • D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member
    • D21G1/022—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member the means using fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

Method for the unification of the form of the deflection lines of the roll mantles (13,23) at the nip (N) formed by an adjustable-crown roll (10) with its counter-roll (20). The bearing spacing (L₀) of the said counter-roll (20) is substantially larger than the corresponding bearing spacing (L₁) of the adjustable-crown roll (10). The load in the nip (N) between the rolls (10,20) is produced by means of load forces (F) which are effective facing the bearings (22a,22b) of the counter-roll (20). In the method, by means of devices fitted inside the bearing spacing (L₁) of the mantle (13) of the adjustable-crown roll (10) and inside the mantle (13), a compensation moment (Mk) is produced which loads both of the end regions of the roll mantle (13), the magnitude of the said moment (Mk) being arranged by means of a compensation force (Fk) such that the roll mantles (13,23) will have substantially uniform deflection lines at the nip (N) between the counter-roll (20) and the adjustable-crown roll (10).
EP87850113A 1986-04-09 1987-04-07 Method for controlling the deflection of an adjustable-crown roll as well as a paper machine roll wherein the method is applied Withdrawn EP0241442A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI861511A FI74070C (en) 1986-04-09 1986-04-09 A method for controlling the bending of a bending controlled roller, as well as a roller for a paper machine for applying the method
FI861511 1986-04-09

Publications (2)

Publication Number Publication Date
EP0241442A2 EP0241442A2 (en) 1987-10-14
EP0241442A3 true EP0241442A3 (en) 1988-08-17

Family

ID=8522432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850113A Withdrawn EP0241442A3 (en) 1986-04-09 1987-04-07 Method for controlling the deflection of an adjustable-crown roll as well as a paper machine roll wherein the method is applied

Country Status (4)

Country Link
US (1) US4793250A (en)
EP (1) EP0241442A3 (en)
JP (1) JPS62243899A (en)
FI (1) FI74070C (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI82102C (en) * 1987-12-11 1994-01-26 Valmet Paper Machinery Inc VALSSYSTEM I SUPERKALANDER. VALSSYSTEM I SUPERKALANDER
FI100099B (en) * 1988-11-17 1997-09-30 Valmet Paper Machinery Inc Method and apparatus for winding a paper web
DE4015245C2 (en) * 1990-03-20 1993-12-23 Escher Wyss Gmbh Deflection adjustment roller
DE4042365C2 (en) * 1990-03-20 1995-05-11 Escher Wyss Gmbh Deflection adjustment roller
DE4010192A1 (en) * 1990-03-30 1991-10-02 Roland Man Druckmasch DEVICE FOR BENDING A ROLLER
DE4305371C2 (en) * 1993-02-22 1995-11-23 Kleinewefers Gmbh Roller arrangement with a deflection compensation roller
US5329849A (en) * 1993-06-11 1994-07-19 Beloit Technologies, Inc. Self-loading controlled crown roll
US5720421A (en) * 1994-02-28 1998-02-24 Vamco Machine & Tool, Inc. Elecronically controlled high speed press feed
US5755370A (en) * 1994-02-28 1998-05-26 Vamco Machine & Tool, Inc. Press feed with infinitely variable stock material engagement spacing
FI97565C (en) * 1995-02-22 1997-01-10 Valmet Paper Machinery Inc Method for sliding the roller sheath of a tubular roller intended for a paper machine or equivalent and a tubular roller applying the method
FI98320C (en) * 1994-03-09 1997-05-26 Valmet Paper Machinery Inc Method for sliding bearings of a tubular roll roll for a paper machine or the like and a tubular roll applying the method
JPH07258992A (en) * 1994-03-17 1995-10-09 Nippon Paper Ind Co Ltd Calender apparatus for papermaking
DE786031T1 (en) * 1994-08-16 1998-01-15 Beloit Technologies, Inc., Wilmington, Del. HYDROSTATIC DEFLECTION ROLLER WITH AUTOMATIC LOAD CONTROL
FI100349B (en) * 1994-09-15 1997-11-14 Valmet Corp Method and plant for supporting the roller sheath in the lateral direction
DE19603651C2 (en) * 1996-02-01 2000-06-21 Voith Sulzer Papiermasch Gmbh roller
US5733415A (en) * 1996-08-01 1998-03-31 Beloit Technologies, Inc. Closed shoe press head indexing system
US6860030B1 (en) * 2000-11-15 2005-03-01 Voith Paper, Inc. Control system for gap measuring
DE10057991C5 (en) * 2000-11-23 2007-04-19 Voith Patent Gmbh Calender and method of treating a web
US6843762B2 (en) 2000-12-18 2005-01-18 Spencer Johnston Company Spreader roll
US6482141B1 (en) 2001-07-25 2002-11-19 Spencer Johnston Company Flexible end supporting arrangement for direct drive adjustable spreader rolls
CH696063A5 (en) * 2001-09-18 2006-12-15 Main Man Inspiration Ag Casting roll for a twin-roll casting machine.
CH695089A5 (en) 2001-09-18 2005-12-15 Main Man Inspiration Ag Casting roll for a twin-roll casting machine.
US6877246B1 (en) * 2003-12-30 2005-04-12 Kimberly-Clark Worldwide, Inc. Through-air dryer assembly
DE102008002112A1 (en) * 2008-05-30 2009-12-03 Voith Patent Gmbh deflection roll
US9481777B2 (en) 2012-03-30 2016-11-01 The Procter & Gamble Company Method of dewatering in a continuous high internal phase emulsion foam forming process
US9138983B2 (en) 2012-08-09 2015-09-22 Xerox Corporation Spreader system having pressure roll and method for controlling pressure in a pressure roll

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068505A (en) * 1980-01-31 1981-08-12 Kuesters E Rollers
DE3025799A1 (en) * 1980-07-08 1982-01-21 J.M. Voith Gmbh, 7920 Heidenheim PRESS ROLLER WHICH BEND IS ADJUSTABLE
GB2098304A (en) * 1981-05-07 1982-11-17 Voith Gmbh J M Press roller with adjustable bending characteristics

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097590A (en) * 1961-04-12 1963-07-16 Beloit Iron Works Anti-deflection roll
YU158381A (en) * 1980-06-28 1983-09-30 Voith Gmbh J M Press roller with adjustable bending
AT381514B (en) * 1981-01-15 1986-10-27 Escher Wyss Ag FURNITURE ON A ROLLING STAND
DE3105171C2 (en) * 1981-02-13 1983-03-17 Kleinewefers Gmbh, 4150 Krefeld Drag roller for pressure treatment of webs
DE3124616C2 (en) * 1981-06-17 1983-10-06 Escher Wyss Ag, Zuerich Roller assembly with a deflection adjusting roller
DE3138365A1 (en) * 1981-09-21 1983-04-14 Escher Wyss AG, Zürich DEFLECTION ADJUSTING ROLLER
AT373795B (en) * 1981-11-11 1984-02-27 Escher Wyss Ag ROLLING DEVICE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2068505A (en) * 1980-01-31 1981-08-12 Kuesters E Rollers
DE3025799A1 (en) * 1980-07-08 1982-01-21 J.M. Voith Gmbh, 7920 Heidenheim PRESS ROLLER WHICH BEND IS ADJUSTABLE
GB2098304A (en) * 1981-05-07 1982-11-17 Voith Gmbh J M Press roller with adjustable bending characteristics

Also Published As

Publication number Publication date
US4793250A (en) 1988-12-27
EP0241442A2 (en) 1987-10-14
FI74070C (en) 1987-12-10
JPS62243899A (en) 1987-10-24
FI74070B (en) 1987-08-31
FI861511A0 (en) 1986-04-09

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Inventor name: NISKANEN JUHANI